Mitcham · Greater London
Window Repairs in Mitcham
Windows in Mitcham that will not open, close or lock can usually be repaired by replacing the hinge, handle or lock rather than the whole window.
- CR4
- SM4
- SW17
- Guide from £65
Mitcham: window hinge replacement
A uPVC or composite door with a multipoint lock has one central gearbox that drives hooks, rollers or bolts along the door edge. A failed gearbox can leave the door stuck locked or unable to lock. In many cases only the gearbox needs replacing, not the whole strip.
Draught seals and gaskets compress and shrink over time, letting in cold air and noise. Replacing them with a matching profile restores the seal without changing the window. The glazier checks the gasket type, as frames from different makers often use different profiles.
A door that drags on the threshold, catches the frame or needs lifting to lock has usually dropped. Doors can often be adjusted using the hinges and by repacking the glass or panel so the door sits square again. Adjustment is usually tried before replacing parts.
Simple care keeps hardware working longer. Clean tracks and keeps, then apply a light lubricant to moving parts once or twice a year. Keep drainage slots clear. Avoid slamming doors or forcing handles, as this strains gearboxes and can cause a door to drop over time.
What you get
- Survey and diagnosis of the faulty part
- Adjustment of dropped or sticking doors and sashes
- Check that windows and doors lock and seal
- Matched replacement hinges, stays, handles or locks

About Mitcham for this job
- Postcodes covered
- CR4, SM4, SW17 and the surrounding area, including Morden, Wimbledon and Streatham
- Coast
- Mitcham is well inland, around 38 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Mitcham the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 hours in midsummer. Windows and doors on sunny elevations expand and contract more with temperature, which can make them stick in summer and catch the frame. Dark-coloured doors absorb more heat, so hinge adjustment may be needed after hot spells.
- Access and setting
- In flats and terraced homes, working on upper-floor windows may need to be done from inside. Security matters on street-facing doors, so anti-snap cylinders and secure handles are worth considering. Parking near the property can affect access.
- Rules in England
- Approved Document Q applies to new homes in England, where doors and windows are expected to meet PAS 24 or an equivalent standard. It does not apply to replacements in existing homes, but PAS 24 products are still a sensible choice.
Guide prices in Mitcham
| Typical job | Guide price inc VAT |
|---|---|
| Replace a pair of window hinges | £95 – £145 |
| Replace a window locking mechanism | £125 – £195 |
| Replace a door multipoint lock | £195 – £325 |
| Fit an anti-snap cylinder | £65 – £115 |
Get a guide price for your size
Approved Document B covers escape windows. Where an existing window is an escape route, typically in first-floor bedrooms, its replacement should give at least the same escape opening as before.
Choosing your window repairs
Espagnolette lock and gearbox
Replacement locking bar or gearbox for windows that will not lock, have a spinning handle or feel stiff to operate.
Friction stay replacement
New hinges for uPVC and aluminium casement windows, matched for length and stack height, including egress stays for escape windows.
Sash cords and balances
New cords, weights or spring balances for sash windows that drop, stick or will not stay in position.
Window Repairs in Mitcham: questions
Can sash windows be repaired instead of replaced?
Usually, yes. Broken sash cords, weak spring balances, sticking sashes and rattles can all be fixed on existing frames. The glazier replaces cords or balances, eases or replaces beads, and adds draught seals where needed. Repairing original sash windows also helps keep the character of older properties and conservation areas.
How can I stop draughts from my existing windows?
Draughts often come from worn gaskets, a sash that has dropped or keeps that no longer pull the sash tight. Replacing the gaskets with a matching profile and adjusting the keeps or hinges usually fixes the problem. If draughts come through the frame or glass seals, the glazier will say what else needs attention.
Do replacement window hinges need to allow escape in a fire?
In England, upper-floor bedroom windows are often relied on as escape windows. Replacement hinges should not reduce the opening below what the window gave before. Egress friction stays open wider than standard stays to give a clear opening, so the glazier checks the room and window before choosing the hinge type.
My door handle spins and the door will not lock. What is wrong?
A handle that spins without moving the lock usually means the gearbox inside the door has failed, or the spindle connecting handle and gearbox has broken. The gearbox can often be replaced on its own. If the door is stuck locked, the glazier can usually open it without damaging the frame before fitting the new part.
Do you cover Mitcham for window repairs?
Yes. We can quote for window repairs across Mitcham and the surrounding Greater London area, including postcode districts CR4, SM4 and SW17, and nearby Morden, Wimbledon and Streatham. Start with your postcode on the quote form and a glazier will talk through the job, explain any charge before booking and give you a written quote.
Get a written quote in Mitcham
Clear guide prices, any charge explained before booking, and one point of contact for every glazing job.